While diamond coatings are best known for pushing break-up modes far beyond the audible band in tweeters, in Raidho TD subwoofer applications, they ensure piston-like behavior even under extreme excursion.
This yields exceptionally clean upper-bass performance, reduces distortion harmonics, and provides durability under stress. In short, the diamond coating ensures the woofer remains as linear, rigid, and durable as possible, reinforcing the premium performance we demand across the entire frequency spectrum.